Electro-conducting tile or floorboard floor covering

Abstract

A component, such as a title or a floorboard, has electro-conductive properties for producing a floor covering, or a similar system, in particular for a medium sensitive to static electricity. The component includes a stack of layers integral with one another and including successively: a wearing layer of plastic consisting of granules of conductive material spread out through the thickness of said wearing layer, a first textile reinforcing armature, a middle layer of plastic comprising granules of conductive material spread out through the thickness of said middle layer, a second textile reinforcing armature, and an under layer of plastic material consisting of granules of conductive material spread out through the thickness of said under layer.

What is claimed is: 
     
       1. A floor covering component having electro-conductive properties, the floor covering component comprising:
 a stack of layers integral with one another and including: 
 a wearing layer of plastic comprising granules of conductive material spread out through the thickness of said wearing layer; 
 a first textile reinforcing armature; 
 a middle layer of plastic comprising granules of conductive material spread out through the thickness of said middle layer; 
 a second textile reinforcing armature; and 
 an under layer of plastic material comprising granules of conductive material spread out through the thickness of said under layer. 
 
     
     
       2. A floor covering component according to  claim 1 , wherein said first and/or second reinforcing armature are coated with a conductive binder. 
     
     
       3. A floor covering component according to  claim 2 , wherein the first and/or second reinforcing armatures are coated in a conductive binder in a quantity included between 2 and 50 g/m2. 
     
     
       4. A floor covering component according to  claim 3 , wherein the conductive binder contains carbon black in a quantity included between 30% and 80% by weight. 
     
     
       5. A floor covering component according to  claim 1 , wherein the granules of conductive material in the wearing layer and/or the middle layer and the under layer are granules of carbon black. 
     
     
       6. A floor covering component according to  claim 5 , wherein the wearing layer includes between 4% and 10% by weight of conductive granules, which conductive granules contain between 15% and 25% by weight of carbon black. 
     
     
       7. A floor covering component according to  claim 5 , wherein the middle layer and the under layer comprise between 8% and 25% by weight of conductive granules, which conductive granules contain between 20% and 35% by weight of carbon black. 
     
     
       8. A floor covering component according to  claim 1 , wherein the wearing layer is aligned on at least one of its faces, or on both, with a layer of conductive varnish. 
     
     
       9. A floor covering component according to  claim 1 , wherein the under layer is coated, on the reverse side, with a layer of conductive varnish.